Is orange juice in an orange potential energy or kinetic energy?
Answers
Answer:
Potential energy.
Explanation:
The potential energy is the energy which is possessed by the body by the virtue of its position with respect to the others, electric charges and with other factors.
And the kinetic energy is defined as the energy of an object which is produced by the virtue of the motion of an object.
Therefore, in the given situation orange juice does not possess any velocity it is in rest. So orange juice is an orange potential energy.
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What are two ways to change the state of a substance?
2) gas is heated
4) gas volume changes
5) mass of a gas is increased
Answers
Answer:
2) gas is heated
Explanation:
In this problem, we have a gas in a fixed container (so, the volume of the gas does not change). Let's see what happens in the different situations listed in the question.
1) Gas is cooled. Since the volume if fixed, the work done by the gas is zero: This means that the change in internal energy of the gas is equal to the heat exchanged:
. However, since the gas is cooled, this means that Q is negative (heat is removed from the gas), so
is negative, so the temperature of the gas, T, is decreased. Now if we look at the ideal gas equation
We see that since V, n and R remain constant, a decrease in T corresponds to a decrease in p: so, the pressure of the gas decreases.
2) Gas is heated. If we apply exactly the same reasoning of point 1), we see that when the gas is heated, its temperature increases: therefore, according to the ideal gas equation, its pressure must increase as well.
3) Gas volume change. By looking again at the ideal gas equation:
We see that in this case we don't have enough information to determine how does the gas pressure change. In fact, we don't know whether the volume V increases or decreases, so we cannot determine how p changes.
5) mass of a gas is increased. An increase in the mass of the gas corresponds to an increase in the number of moles, n. However, in the ideal gas equation, we don't know if the temperature of the gas, T, remains the same or not: therefore, we don't have enough information to tell how does p change.
IS IT A MULTI CHOICE?? THEN SAY SO!!!
2 and 5 are the answers
Answers
Answer:
the the waterside exits in a mountain in in our river
Explanation:
the water comes from the Icebergsand foam water bodies and make a river and then it forms lakes and tributaries
Answers
greater is the keword here
When the pressure at the bottom of a submerged object is less than the pressure at the top of the submerged object a buoyant force is produced?
Answers
Explanation:
In an exothermic reaction, heat is released into the surroundings. In this type of reaction, energy of products is less than the energy of reactants.
In an endothermic reaction, heat is absorbed by the reactant molecules. In this type of reaction, energy of products is more than the energy of reactants.
Therefore, we can conclude that while performing an experiment involving a reaction between two chemicals, the scientist observes that the reaction container has become warm. The observation is an example of exothermic reaction.
Answers